Lockscreen: remove mAppWidgetContainerHidden instead of hiding it

This will reduce memory usage.

Change-Id: I541ab53a98b84ce919998a322fa2b28a9621a9f9
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
policy: always use hardware acceleration for keyguard

Without hardware acceleration, keyguard widget will appear aliased
and choppy (especially at the end of the scroll).

Change-Id: I1bfb6fbcba6306edf366e8ea752d6919936c3ab6
LockscreenTargets : Dismiss on target select

Dismiss the lockscreen on target select, rather than when the application
is fully loaded. This gets rid of th perceived lag that a lot of users experience.
This is how we had it in previous versions of cm as well.

Change-Id: I4f125ad5a13a95b6eb72734a0fbdc44505d665ff
SystemUI: unregister ContentObserver

We were leaking memory.

PS2: move instanciating to the SearchPanelView constructor
PS3: more possible memory leaks

Change-Id: Ie9ddf00c698692f418cb8ef473dff2b1aa05135d
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
Fix Transparency Value not sticked with autohide

PS2: move settings TransparencyManager out of if block

Change-Id: I02f4984144867561955bf2b73291f503d6c1b1e7
Signed-off-by: kecinzer <kecinzer@gmail.com>